222 f07 pset2 solns - concordia university

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Page 1: 222 F07 PSet2 solns - Concordia University
Page 2: 222 F07 PSet2 solns - Concordia University
Page 3: 222 F07 PSet2 solns - Concordia University
Page 4: 222 F07 PSet2 solns - Concordia University
Page 5: 222 F07 PSet2 solns - Concordia University

Last step of first strategy: deoxygenation of carbonyl… Clemmensen reduction: would likely not work fine OCH3 would be protonated in acid, so Cl- would displace HOCH3 Wolff-Kishner reduction: would likely work fine (basicity -OR > -OH, so would not harm ether substituent)

o Perhaps even a better choice than desulfurization of thioacetal (RSH may displace protonated OCH3…)

See note at bottom

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